I don’t understand how you worded the question but x=-4 if thats what you are looking for
The answer would look something like this:

There could also have a simplified version.
I hope this helps.
Answer: 
Step-by-step explanation:
If you meant to solve for "z", then refer to the attachment below.
Juan did.
The line on his graph takes longer to get to 8 blocks.;-D
Answer: Hi your answer is
2:2 or 1000:1000
Step-by-step explanation: